package Controles;

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

import Herramientas.Serializar;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.*;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import modelos.Revista;
/**
 *
 * @author ChEkO_Guajardo
 */
public class RevistaServlet extends HttpServlet {

    /**
     * Processes requests for both HTTP
     * <code>GET</code> and
     * <code>POST</code> methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        if(request.getParameter("metodo") != null &&
           request.getParameter("metodo").equals("creaRevista")
           ){
            Revista rev = new Revista();
            rev.setNombre(request.getParameter("nombreRevista"));
            rev.setCosto(Float.parseFloat(request.getParameter("costo")));
            rev.setCartaEditor(request.getParameter("carta"));
            rev.agregar();
            String url="/jsp/pantallaPrincipal.jsp";      
            RequestDispatcher dispatcher = getServletContext().getRequestDispatcher(url);
            dispatcher.forward(request, response);  
        }
        else if(request.getParameter("metodo") != null && request.getParameter("metodo").equals("getRevistas")){
            getRevistas(request, out);
            out.close();
        }
        else if(request.getParameter("metodo") != null && request.getParameter("metodo").equals("publicaRevista")){
            publicaRevista(request, out);
            out.close();
        }
    }
    
    
    protected void publicaRevista(HttpServletRequest request, PrintWriter out){
        new Revista().publicaRevista(Integer.parseInt(request.getParameter("idRevista")));
    }
    
    protected void getRevistas(HttpServletRequest request, PrintWriter out){
        LinkedList<Revista> revistas = new Revista().getRevistas();
        String jsonRevista = "{\"revistas\":[";
        
        for(int i = 0; i < revistas.size(); i++){
            Revista revista = revistas.get(i);

            if(i > 0){
                jsonRevista += ",";
            }
            
            jsonRevista += "{" 
                            + "   \"idRevista\": " + "\"" + revista.getIdRevista() + "\","
                            + "   \"version\": " + "\"" + revista.getVersion() + "\","
                            + "   \"fechaInicio\": " + "\"" + revista.getFechaInicio() + "\","
                            + "   \"costo\": " + "\"" + revista.getCosto() + "\","
                            + "   \"nombre\": " + "\"" + revista.getNombre() + "\","
                            +     Serializar.serializaArticulos(revista.getArticulos())
                            + "}";

        }
        jsonRevista += "]}";
        out.write(jsonRevista);

    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP
     * <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP
     * <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
